The quetzal (locally: keˈtsal) is the currency of Guatemala. It is named after the national bird of Guatemala, the Resplendent Quetzal. In ancient Mayan culture, the quetzal bird's tail feathers were used as currency. It is divided into 100 cents, called centavos in standard Spanish or lenes in Guatemalan slang. The plural can be either quetzales or quetzals.

The ruble or rouble is the currency of the Russian Federation and the two self-proclaimed republics of Abkhazia and South Ossetia. Formerly, the ruble was also the currency of the Soviet Union and the Russian Empire prior to their breakups. Currently there is no official symbol for the ruble.